information about  the menstrual cycle , stages in the menstrual cycle , fertilization and how conception is  happen is good . Thank you for sharing. Santhathi is dedicated to providing comprehensive care for patients struggling with infertility and other reproductive endocrinology problems. ,We offer a full range of infertility diagnostic testing and assisted reproductive technologies including IVF. Our fertility experts and staff are dedicated to giving you the highest level of care and compassion.